Area Forecast Discussion
Issued by NWS Boise, ID

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FXUS65 KBOI 272027
AFDBOI

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE ID
227 PM MDT FRI MAR 27 2015

.SHORT TERM...TONIGHT THROUGH SUNDAY...AFTER A WARM DAY TODAY
WITH NEAR RECORD HIGHS...A COLD FRONT WILL BRING A CHANGE TO
COOLER/WINDY CONDITIONS ON SATURDAY. THE FRONT WILL MOVE THROUGH
SE OREGON LATE TONIGHT AND SW IDAHO SATURDAY MORNING. MOISTURE AND
INSTABILITY ALONG THE FRONT WILL LEAD TO ISOLATED THUNDERSTORMS
ACROSS A PORTION OF SE OREGON THIS EVENING...EXTENDING FROM NORTH
OF BURNS INTO BAKER COUNTY. NEWEST MODELS STILL SUPPORT BULK OF
THE SHOWERS WILL OCCUR SATURDAY MORNING ACROSS THE WEST CENTRAL
AND BOISE MOUNTAINS...WITH A SLIGHT CHANCE OF SHOWERS ELSEWHERE AS
THE MOISTURE WILL BE LIMITED. MAIN STORY WILL BE THE WINDS...WITH
BRIEF GUSTS OF 35-45 MPH POSSIBLE ALONG THE FRONT AS IT SWINGS
THROUGH THE TREASURE VALLEY EARLY SATURDAY MORNING. THE GUSTY
WINDS WILL DEVELOP IN THE WESTERN MAGIC VALLEY BY MID-MORNING AND
REACH NEAR ADVISORY SPEEDS OF 30 MPH/WITH GUSTS TO 45 MPH THROUGH
EARLY AFTERNOON. A DRIER/STABLE AIR MASS WILL MOVE IN BEHIND THE
FRONT WITH SHOWERS ENDING DURING THE AFTERNOON. TEMPERATURES WILL
BE 10-15 DEGREES COOLER. ON SUNDAY...WEAK ZONAL FLOW OR SLIGHT
UPPER RIDGING WILL SUPPORT DRY WEATHER ALONG WITH LIGHT WINDS AND
SLIGHTLY WARMER TEMPS.

.LONG TERM...SUNDAY NIGHT THROUGH FRIDAY...THE UPPER LEVEL RIDGE
WILL REBUILD OVER THE REGION ON SUNDAY AND WILL REMAIN IN PLACE
THROUGH MONDAY. AS SURFACE WINDS SHIFT TO THE SOUTHEAST MONDAY
AHEAD OF THE NEXT UPPER LEVEL TROUGH...HIGH TEMPERATURES WILL
AVERAGE AROUND 15 DEGREES ABOVE NORMAL. THIS WILL LIKELY BE THE
WARMEST DAY OF THE WEEK. THE ASSOCIATED COLD FRONT WITH
PRECIPITATION WILL MOVE ACROSS THE AREA ON TUESDAY. TEMPERATURES
WILL DROP FROM 15 DEGREES ABOVE NORMAL TO NEAR NORMAL ON TUESDAY
WITH THE FRONTAL PASSAGE. THE UPPER TROUGH AND NORTHWESTERLY FLOW
WILL REMAIN OVER THE REGION THROUGH THURSDAY FOR A CHANCE OF
SHOWERS AND TEMPERATURES NEAR NORMAL. THE UPPER RIDGE REBUILDS
OVER THE REGION ON FRIDAY FOR A RETURN TO WARMER AND DRY
CONDITIONS INTO THE WEEKEND.

&&

.AVIATION...VFR. MOSTLY CLEAR SKIES THROUGH THIS EVENING. CLOUDS
INCREASE AHEAD OF A COLD FRONT FROM THE WEST LATE TONIGHT. THE
FRONT WILL AND SHOWERS WILL REACH KBNO/KBKE AROUND 09Z THEN KBOI
AROUND 11Z AND FINALLY KTWF/KJER AROUND 12Z SATURDAY. SURFACE
WINDS SE TO SW 10 TO 15 MPH THIS AFTERNOON...BECOMING W-NW 15-25
KTS WITH GUSTS TO 35 KTS WITH PASSAGE OF THE FRONT SATURDAY
MORNING. EXPECT BREEZY CONDITIONS TO CONTINUE THROUGH SATURDAY
AFTERNOON IN THE WESTERN MAGIC VALLEY. WINDS ALOFT WILL BE
SOUTHWEST TO WEST AROUND 15 KNOTS UP THROUGH 10K FEET
MSL...INCREASING TO 40 KTS BY 12Z SATURDAY.

WEEKEND OUTLOOK...DECREASING CLOUDS AND PRECIPITATION SATURDAY
NIGHT WITH VFR CONDITIONS...HIGH LEVEL CLOUDS AND LIGHT WINDS ON
SUNDAY.

&&

.BOI WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
OR...NONE.

&&

$$

WEATHER.GOV/BOISE

SHORT TERM...BW
LONG TERM....JS/WH
AVIATION.....JS


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